Canoe and other small craft.



0. BVINRUDB.

cANoB AND OTHER SMALL CRAFT.

2 SHEETS-SHEET 1.

Y. BVINRUDB. CANOE AND OTHER SMALL CRAFT.

1,01 1,930. PPLIUATION FILED uns, 1911. Patend Dec. 19 1911.

2 SHEETS-SHEET 2.

UNiTED STATES en rENr oFFroE.

OLE EVINRUDE, OF MILWAUKEE, WISCONSIN, ASSIGNOR T0.EVINRUDE MOTOR G0., 0F MILWAUKEE WISCONSIN.

CANOE AND OTHER SMALL CRAFT.

Specification of Letters Patent.

Patented Dee. 19, 1911.

Application led May 9, 1911, Serial No. 625,949.

craft with sim le, economical and efficientpropulsion mec anism similar in some respects to what is set forth in my application Serial No. 582,336, led Septem er 16, 1910, the mechanism herein described being designed for ready detachable connection with a thwart and the bottom of the craft to which it is applied.

Figure 1 of the drawings represents a for the most part sectional view of propulsion mechanism in accordance with my invention applied to a canoe of which a fragment of the same is shown partly in section but otherwise in side elevation, the plane of the section being indicated by line'1-1 in Fig. 4; Fig. 2, a side elevation of a ortion of said mechanism, a thwart to whic it is com nected being in transverse section, as indi cated by line 2-2 in Fig. 4; Fig. 3, a 'plan View of a detail partly in horizontal section on the plane indicated by line 3-3 in Fig. 1, and Fig. 4, a similar view, the section thereof being indicated by line 4-4 in eferring by numerals to the drawings, 5

rc lindrical shell 9. Packing 10 surrounds t e shell between said canoe bottom and block, and other acking 11 surrounds said shell between saidI block and a iianged collar 12 bolted theretohthe packing serving to prevent leakage Vinto the canoe. The upper end of the shell is externally 'screwthreaded for the engagement of nuts 13,

of an mternal-combus'tion engine is con-` nected. As a matter of detail, the casingextension of the engine-cylinder is provided with opposite lateral lugs 16 that are bolted to upwardly extending parallel arms 14 of the' aforesaid bracket, and said casing-extension of said engine-cylinder is also provided with bearin s for the'engine-shaft 17 having a crank t ereof in rod connection with the engine-piston 18. A {1y-wheel 17 fast on the up er outer end of the engineshaft, is provided with a handle 17"l to facilitate cranking of the engine, and a liquid fuel tank 19 is shown conveniently arranged in connection with the casing-extension of the en ine-cylinder.

Rigidly secure on one of the bearings for the engineeshaft is a depending tube 2() engaging another tube 21 that extends down through the shell 9 and is rigidly secured at its lower end to a gear-case 22. The upper ends of the tubes 2O and 21 are immediately under the casing-extension of the engine-cylinder, and in gripping connection with said tube`21 between the shell 9 and said extension of the engine-cylinder is a split-ring end 23 of a tiller 23 for which a supporting rod 24 is provided in connection wit the arms 14 of the pedestal bracket on the thwart aforesaid. As a matter of detail, the ring end of the tiller is provided with ears flanking its split and a clamping-bolt 25 en ages the ears.

igidly secured on thelower end of the en 'ne-shaft 17 is a sleeve-extension 26 provi 4ed with an inner spline 26 engaging a groove in an auxiliary shaft 27 for which a portion 22 of the gear-case 22 constitutes a vcaring within the lower end of the tube 21. The shaft 27 is virtually a continuation of the engine-shaft, and its lower end is in ruiter-gear connection with the shaft 28' o f a propeller 28, as shown in Fi 1, the gear-case 22 being provided with earings or the pro eller-shaft. The ro eller-hub and the enV of the gear-case' art est from said hub are preferably conical, vas herein shown to offer the least resistance to water in hich the canoe is iioated, and said canoe is greferably provided with a dependingV fender 29 forward of the propeller. The extcnsion22 of the gear-case 22 being fast in the tiller-controlled tube 21, the propeller is made to serve as a rudder for said canoe.

A pump-cylinder 30 is shown fitted to the gear-case 22 for connection, by a hose 31 with a pipe 32 that extends up through the canoe-bottom, the block 6, the flange of the collar 12 and the thwart 7, the upper end of the pipe being connected by a hose 33 with the water-jacket of the engine-cylinder. The pump-piston 34 is operated by a cam 35 on the hub of the gear-wheel of the propeller-shaft. Another hose 36 is employed in connection with 'an outlet of .said waterjacket to conduct water therefrom overboard.

From the foregoing it will be readily understod that the propulsion-mechanism may be readily detached from the canoe after loosening the tiller 23 on the shell 9 and uncoupling the hose 31 from the pipe 3Q, the tube 21 and parts therewith, includin the shaft 27, being slipped away from be ow, leaving the engine and parts therewith, including the tube 20, to be slipped away from above, after disconnecting said engine from the pedestal-bracket on the thwart aforesaid.

While the foregoing has especial reference to canoes, my improvements herein disclosed a' ply also to skifs, row-boats and other sma l craft for lwhich propulsion mechanism is desirable.

I claim:

1. The combination witha canoe or other small craft and a thwart therein, of a bottom-block underlyin the thwart, a cylindrical shell secured 1n connection with the thwart and extended through said block and the bottom of said craft with which it has water-tight engagement, an engine supported in connection with said thwart above the same, a tiller-controlled tube concentric with the engine-shaft and en aging said shell, and a propeller suspende in connection with said tube, the propeller-shaft being in gear with said engine-shaft.

2. The combination with a canoe or other small craft and a thwart therein, of4 a bottom block underlying the thwart, acylindrical shell in connection with the thwart and extended through said block and the bottom of `said craft with which it has water-tight' engagement, an engine supported in connection .with the thwart above the same, a tube constituting an extension of a bearingfor the engine-shaft, a tillercontrolled tube encompassin thetube aforesaid and engaging 'said she a 4sleeve constituting an extension yof said engine-shaft to which it is fastened within the tube-ex tension of said bearin an auxiliary shaft in spline-connection with the sleeve, and a propeller suspended in connection with the tiller-controlled tube, the propeller-shaft being in gear with the auxiliary shaft.

3. The combination with a canoe or other small craft and a thwart therein, of a bottom block underlying the thwart, a cylindrical shell extending through the thwart, block and bottom of the craft with which it has watertight connection, nuts engaging the shell against the sides of said thwart, an engine supported in connection with said thwart above the same, a tailler-controlled tube concentric with the engine-shaft and engaging said shell, and a propeller suspended in connection with said tube, the propeller shaft being in gear with said en-` gine-shaft.

4. The combination with a canoe or other small craft and a thwart therein, of a bottom block underlying the thwart, a cylindrical shell secure in connection with said thwart and extended through said block and the bottom of said craft with which it has water-tight engagement, a pedestal bracket fast on the aforesaid thwart, an engine in connection with the arms of the bracket, a tiller-controlled tube concentric with the engine-shaft and engaging said shell, and a propeller suspended in connection with said tube, the'pro aller-shaft being in gear with said engine s iaft.

5. The combination with a canoe or other small craft and a thwart therein, of a bottom block underlying the thwart, al cylindrical shell secured in connection with said thwart and extended through said block and the bottom of said craft with which it has water-tight engagement,A an engine supported in connection with said thwart above the same, a tube concentric with the en ineshaft and engagin the shell, a tiller aving a split-ring en in ripping connection with the upper end of t e tube, and a propeller suspended in connection with said tube, the propeller-shaft being in gear with said engine-s aft..

6. The combination with a canoe or other small craft and a thwart therein, of a bottom block underlying the thwart, a cylindrical shell secured in connection with said thwart and extended through said block and the bottom of said craft with which it has water-tight engagement, a pedestal bracket fast on the aforesaid thwart, an engine in connection with arms of the bracket, a tube concentric with the en rie-shaft and enl gaging said shell, a til er attached to the tube, a tiller-suport rod connecting the arms of said brac et, and a propeller suspended in connection with said tube, the propeller-shaft being in gear with the engine-shaft.

7 The combination with a'canoe or other small craft and athwart therein, of a bottom block underlying the thwart, acylindrcal shell secured in connection with said thwart and extended through said block and the bottom of said craft with which it has' water-tight engagement, a pedestal bracket fast on the aforesaid thwart, an engine in i connection with arms of the bracket, a tube constituting an extension of a bearing for the engine-shaft, a tiller-controlled tube encompassing the tube aforesaid and engaging said shell, a sleeve constituting an eX- tension of said engine-shaft to which it is fastened within the tube-extension of said bearing, an auxiliary shaft in spline connection with the sleeve, and a propeller suspended in connection with the tillercontrolled tube, the propeller-shaft being in gear with the auxiliary shaft.

8. The combination with a canoe or other small craft and a thwart therein, of a bottom-block underlying the thwart, a cylindrical shell secured in connection with the thwart and extended through said block and the bottom of said craft with which it has water-tight engagement, an engine supported in connection with said thwart above the same, a tiller-controlled tube concentric with the engine-shaft and engaging said shell, a pro eller suspended in connection with said tu e, the propeller-shaft being in gear with said engme-shaft, and a fender or said pro eller in connection with the aforesaid cra t.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of Wisconsin in the presence of two witnesses.

OLE EVINRUDE. Witnesses:

N. E. OLIPHANT, MAY DowNEY. 

